Wish I could go. I'd been socking away money since last CitizenCon in the hopes of attending this year, but medical expenses in this country are highway robbery.
Guess I'll have to kick plans to visit the UK several more years down the road.

If you're asking whether ships can be entirely refitted and re-purposed to fulfill a different role or add adding different components onto it, the answer so far has been "Maybe?" with raised voice and shrugged shoulders.
CIG has mentioned that several ships will have kits that can be interchanged and that components can be added or swapped out, but I doubt it will be anything that can drastically alter something. We likely won't be able to weld metal sheets onto ships to create a jerry-rigged plate armor or something like that. But your example of gutting a Terrapin and putting in things to turn it into an RV, a UHaul or a taco truck might be in the realm of possibility.
It all depends on what the game can handle.

There are even examples of this within the Star Citizen community, some on the web and others in person. The least we can do is call this kind of toxicity out when we see it and show support for those affected by it.

Because in the increasingly neo-feudal late capitalist hellscape we're living in people have little else to look forward to other than death and the partaking of distractions to entertain themselves until the seas consume us. Anything which burdens or causes stress to us is now also pressing on that part of our brain aware of our hastening doom, and the desire for preservation kicks in.
And like you mentioned, CIG wouldn't be doing this if they didn't have lots of data pointing to the $0 CCU market not being too large.